It takes 48,000 gallons of paint each year to paint a large bridge. each of the 12 painting crews use the same amount of paint.

how many gallons of paint does each crew use?

gallons-?

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6